Leonard Nimoy, probably best known as Mr. Spock on "Star Trek," has died. He was 83.

The actor died Friday morning at his Los Angeles home of end-stage chronic obstructive pulmonary disease, his reps Bob and David Gersh told CBS News.

The actor's granddaughter Dani posted the following message on Twitter Friday afternoon: "Hi all, as you all know, my Grandpa passed away this morning at 8:40 from end-stage chronic obstructive pulmonary disease. He was an extraordinary man, husband, grandfather, brother, actor, author-the list goes on- and friend. Thank you for the warm condolences. May you all LLAP. - DaniP.s. I will be putting special shirts up on our site, SHOPLLAP.com, where all of the proceeds will go to the COPD Foundation. I hope to hear from you all."

A gunman went house to house, fatally shooting seven people and wounding another in an overnight attack at a small southern Missouri town, police said Friday. The shooting spree ended when the suspect apparently committed suicide in a vehicle.

The victims were found in four different homes in the town of Tyrone about 40 miles north of the Arkansas border. The body of the 36-year-old alleged gunman was discovered in neighboring Shannon County, dead from an apparent self-inflicted gunshot wound, Missouri State Highway Patrol Sgt. Jeff Kinder said Friday morning.

Recreational marijuana use is legal in the nation’s capital as of Thursday, the result of a measure, approved by voters in November, that permits the possession of a small amount of pot for home use by adults over 21 in Washington, D.C.

Mayor Muriel Bowser this week announced the city's plans to move forward with the initiative, despite an attempt by Congress in December to block it.

The Wisconsin state Senate on Wednesday night narrowly approved a proposal to make Wisconsin the 25th right-to-work state in the nation, as thousands of demonstrators protested the measure at the state capitol.

The Republican-led state Senate was expected to approve the bill, which would prohibit requiring private sector workers to join or financially support unions, and move it to the state Assembly, where Republicans also hold a majority.

Abercrombie & Fitch’s rejection of a Muslim job applicant for wearing a headscarf was sharply criticised in the US supreme court on Wednesday, as even conservative justices ridiculed the fashion chain’s “mythical preppy” rules on how employees can dress.

In a landmark religious discrimination case, brought by Oklahoma shop worker Samantha Elauf, lawyers for the store argued it need not have taken her religion into account when applying a rule against headwear because managers only guessed she was Muslim.

- A senior State Department official in charge of counterterrorism programs was arrested after allegedly soliciting sex from a minor.

Daniel A. Rosen, who is the State Department's director of counterterrorism programs and policy, was arrested on a charge of using a communications device to solicit a juvenile, the Fairfax County police said.